Continuous rolling-mill



(No Model.) 2 Sheets-Sheet 1.

' J. REESE.

CONTINUOUS ROLLING MILL.

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Patented Apr. 17,1883,

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(no Model.) 2 Sheets-Sheet 2.

J. REESE.

oommuons ROLLING MILL.

' No. 275,856 Patented Apr. 17,1883.

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PATENT Fries.

JACOB REESE, ()F PITTSBURG, PENNSYLVANIA.

CONTINUOUS ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 275,856, dated April 17, 1883.

Application filed September 14, 1882. (No model.)

To all whom it may concern Be it known that l, JACOB REESE, a citizen ofthe United States, residing at Pittsburg, in

the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Con tinuousiMills for R011- ing Metals; and'I do hereby declare the following to be a full, clear, and exact description thereof, references being had to the drawings forming a part thereof, in which- Figure 1 is an end view. Fig. 2 is a side elevation of the same. Fig. 3 is a ground plan. Fig. 4 is a side elevation of the stirrup with its bolt and key in place. Fig. 5 shows the top roll with caps and journal-bearin gs attached to and drawn out of the housings by means of the stirrup. Fig. 6 is a side View of one of the caps and journal-bearings. Fig. 7 is an end view. of the adjustable guide-box. Figs. 8 and 9 are a View of the twisted metal as it would appearif therollers were instantly stopped and the metal withdrawn.

In the practice of continuous mills for rolling iron and steel into billets, rods, 850., it is necessary that the metal should be rolled on all sides. This has been efiected by the use of alternate pairs of horizontal and vertical rolls; but as the vertical rolls require bevelgearing to drive them, that method is objectionable.

The object of this invention is the construction of a continuous train of horizontal rolls of such form that the axis of each pair of rolls will be on the same verticalline and the metal will be twisted by the act of rolling, so thatit will be presentedto each succeeding pair of rolls in the proper position without the use of any intermediate mechanism for twisting the metal.

The invention consists, first, in the construction and use of conical grooved rolls in continuous trains; second, in placing the bottom conical grooved roll, with its smaller end opposite to thelarger end of the top roll of each pair; third, in furnishing a housing-cap stirrup so arranged as to fit into the two housing-caps and lift the top roll into or out of place readily; fourth, in forming the housing with a concave base, so that the series of housings will form a continuous spout.

A A are bed-plates. B is the housing. 0 G are the rolls. D D are the housing-caps. D

is the cap-stirrup. E is the stirrup-bolt. FF are the adjusting screws. G G are capbolts. H H are the pinions. I is the bottom guide-box. J is the top adjustable guide-box.

top of the guide-box in place. L isa curved depression in the base of the housing. M is an end view of the bar passing out of the first pair of rolls. N is the horizontal and O the vertical lines of the same when in the first pair K is the compensating-weight for holding the parts of the housing together, is depressed inthe form of a spout or gutter. This web B projects out beyond the housingstandards equal to one-half the distance which may exist between contiguous housings, in order that the spout may be practically continuous for holding the scale and carrying away the water. The housings are mounted on two bed-plates, and are fastened in the usualmanner.

The standards of the housing are all planed to a uniform gage, and the bottom brasses are of the usual construction. The brasses or ourrial-boxes of the top rolls, however, are of the form called solid, and are cast onto and are an integral part of the housing-caps, as shown in Fig. 6. The'rolls, except the finishing-pair, (not shown in the drawings,) are all of a conical form. The amount of cone or differentialdiameters will depend on the distance existing between the respective housings, the greater the distance between the housings the less the cone required.

Vthen the housings are planed and mounted on the bed-plates the bottom brasses are adjusted and the bottom roll put in place. The caps and journal-boxes, being planed and fastened ready for use, are slipped on the necks of the top roll, and the stirrup and bolt are adjusted, as shown in Fig. 5. It is then attached to the crane and put in place in the housing, with the smallest end over the largest I end of the bottom roll. The rolls are adjusted endwise by means ofthe set-screws F F. They are adjusted up and down by means of liners between the cap and top of housing at P P and the bolts G G. The largest ends of all the bottom rolls may be placed in alternate positions, as shown in Fig.3. By placing them uniformly the metal would assume the shape shown inFig. 8, while if the rolls were alternated, as shown in Fig. 3, the bar would show the twist, as in Fig. 9. The slanting wall of the V-groove, owing to the taper of the roll, is higher upon one side than the other. This tends to draw or elongate the metal moston that side, producing a twist in the metal as it emerges from the rolls somewhat likethe ac: tion which the difierent surface-speed efl'ects in the cone-disk rolls. The pairs of rolls may be placed at any con venient distance from each each other; but in ordinary practice 1 find twenty-four inches between succeeding pairs of rolls as a very desirable distance.

The rolls are provided on both the entering and delivering sides with rest-bars and both bottom and top guides, which are adjusted in the usual manner. Between the deliveringguides of one pair of rolls and the enteringguides ofthe succeeding pair of rolls intervenes the guide-boxes, as shown in Fig. 7. The internal opening of the guides and guide-box is -made to correspond to the shape of the metal,

which passes through them in a twisted condition. The bottom and top rolls of each pair are geared by means of pinions H H. The rolls are so turned and adjusted as to reduce the metal in each pass twenty-five per cent., and each succeeding pair of rolls is caused to revolve at an increased velocity of twenty-five per cent. over the preceding pair.

I find in practice that it is a very delicate matter to accurately adjust the velocity of the rolls to correspond to the delivery of the metal, and it sometimes occurs that the metal is jammed in the guide-box, because the succeeding rolls do not take it away as fast as produced by the preceding rolls; and to avoid the jamming I have constructed the guidebox with an adjustable top, which-is hinged on one side and held down by a weight, K.

horizontal line N, Fig. 8, is brought into the vertical position and the vertical line O-is brought :down to the horizontal, when the bar is made to enter the next pair of rolls, and this operation is repeated between each pair of rolls. The last pair (not shown) being of the usual construction, the metal will pass out in a straight condition. Should the metal, from any cause, he delivered faster than the succeeding rolls are able to take it, it will buckle and press against the sides of the guide-box, so as to lift the weight and raise the top of the guide-box J, and thus an excess of metal may be enabled to buckle without jamming so tight as to prevent its being drawn into the rolls.

Should a break occur, and the train be stopped with the'metal in the rolls, the housing-screws or cap-bolts G G are slackened and pulled out sidewise, the stirrup is attached and the top rolls are removed, the cobble is withdrawn, and. the train again adjusted into working order.

The advantagesare, first, that the housings are so formed-as to make a solid guttered bottom, so that the water is kept out of the pit, and the scale. may be raked out from the train in a clean condition for further use; second, the rolls being conical, the metal is twisted without any intermediate mechanism.

I am aware that a continuous mill has heretofore been devised wherein the body of the roll differed in diameter, so as to form a shoulder, the diiferent diameters being connected by inclined or curved portions, and that the rolls thus shaped were arranged reversely in pairs, so that each shoulder formed one side of a groove having sloping bottom and top, and do not claim such a construction. In such devices the shoulders of the rolls acted as collars and moved at the same surface speed, so that the bar was drawn or elongated uniformly on both sides and passed from the rolls without twisting.

It will be perceived that my rolls are tapering and provided with V-grooves lower upon one side than the other. Consequently the metal is drawn or elongated on the side where the groove is longest or highest, and the draft causes the bar to emerge from the rolls with a twist, which does not occur in the construc ,tion before recited.

What I claim, and wish to secure by Letters Patent, is-- l. A continuous train provided with tapering or conical rolls having grooves whose walls are of unequal height, whereby the draft is greater upon the metal at one side and tends to rotate the metal as it leaves the roll, substantially as specified.

2. Housings for continuous train of rolls, which are each provided with a solid base having a concave upper surface which extends beyond the housing-sides to the base of the adjacent housings, whereby a continuous channel or spout is formed adapted to carry away the water and scale and prevent their entrance into the pit.

- 3. The housing-caps and top journal-boxes, in combination with the housing-cap stirrup.

4. A continuous train provided with a series of sets of grooved conical rolls mounted in a series of housings which are each provided with a solid base having a concave upper surface extending to the base of the adjoining the housings, housing-caps, and top journalboxes, with the rods and stirrup.

7. A continuous train provided with a series of sets of conical-grooved rolls mounted on housings having a'solid base, with an up per surface extending beyond the housingsides, and provided with housing-caps and toproll journal-bearings, formed in one piece and provided with a series of guide-boxes having adjustable or yielding tops or sides, construct-- ed and arranged substantially as and for the purpose set forth. e p

8. The combination,in a continuousmill, of two or more pairs of conical grooved rolls, all the bottom rolls of the series arranged with the large diameters at the same side of the Witnesses:

FRANK M. REESE, WALTER REESE. 

